A slowing of the rate of growth has been observed in some children and adolescents who take stimulants, but it has not been shown to affect final height. Children and adolescents should have their weight and height monitored closely by their physician while taking stimulants.

Allergic reactions, with skin rashes and other, more serious allergic symptoms, can occur with stimulants, so it is best to notify your doctor if any new or unusual symptoms occur.